Bookbinding.



UNTTn STATES PATENT @Finca RICHARD P. wiNcKLER, or LAToNiA, KENTUCKY.

BOO'KBINDING.

SPECIFICATION forming part of Letters Patent No. 694,593, dated March 4,1902.

Application filed October 4, 1901. SerialNo. 77,614. (No modell tain newand useful Improvements in Book? binding, of which the following is aspeciiication.

This invention relates to certain improve'- ments in bookbinding, andhas for its object to provide a binding of a simple and inexpensivenature adapted to impart increased strength and durability to the boundbooks, while presenting a degree of flexibility at the backs sufficientto permit of opening the books freely without danger of damage'or unduestrain upon the binding.

the binding is made stronger'and more durable and flexible, all as willbe hereinafter fully set forth. The novel features of the invention willbe carefully defined inthe claim s'.

In the accompanying drawings,which serve to illustrate my improvements,Figure 1 is a perspectiveV view showing a book bbund according to myinvention; and Fig. 2 is a fragmentary sectional view drawn to'anenlarged scale and showing certain features of the improved binding tobehereinafter ,referred to, the plane of the section being indicated bythe line a ct in Fig. 3. Fig. 3 is a View showing the binding edges ofthe assembled signa-Y tures. Fig. 4 is an enlarged fragmentary sec-ltion, showing the means for reinforcing the folded sheets at the bindingedges. Fig. 5 is an enlarged sectional detail rvview showing a form oftape preferably employed in the improved binding.

In these views, 1 indicates the back of the book, and 2 2 indicate thesides thereof,while 3 indicates the body of the book. 4 4 indicate thefirst and last signatures, and 5 the intervening signatures, comprisedinthe body l3 of the book.

In preparing the signatures for sewing the outer sheets 1l of the firstand last signatures 4 4 of the book are provided with reinforces 12 inthe form of folded str-ips of lnuslin or Aother tough and flexiblematerial secured along the lines of fold, as shown in Figs. 2 and 4, thestitches 8, by meansof which these signatures are sewed in place, beingpassed centrally through these reinforces. Other reinforces 13 are alsoprovided upon the first and vlast signatures 4 4,'these latterreinforces being also in the form of strips of muslin or othcrftough andiiexible material folded, as shown at 14, to produce two plies, whichare carried around the said signatures 4 4 at their binding edges, sothat the folded part of each strip is held between one of the outersignatures 4 andthe adjacent inner signature 5, as shownA infFigs.l 1,2,and 3, the reinforces beingglued orotherwise secured in position. Thestitches 8 are also passed through the two plies of the reinforces 13,and the plies 15 and g 1li of the reinforces are extended at the frontThe invention consists 1n certain `n'o\'*el-fea`'v tures of the improvedbinding, whereby certain important advantages are attained and;

and back of the book and are free from one another, the outer ply 15being of greater width than the inner ply 16, as clearly shown in Figs.2 and 3. The inner plies 16 carry ily-leaves 18, as shown in Figs. 1 and2, while the outer plies 15 carry the end sheets 17, the saidIiy-leaves'and end sheets being pasted along the edges of the plies," sothat they are secured thereby to the first and last signatures 4.

In my improved binding tapes 6 are employed,extended transversely acrossthe binding edges of the signatures, these edges being unsewed and thetapes resting against them along their iiat sides. The ends 7 of thetapes 6 are made to project beyond opposite sides of the body 3 of thebook and are adapted for attachment to the sides 2 2 of the'cover.

Each of the signatures 4 4 and 5 5 is held by the stitches 8 to thetapes 6, the said stitches being passed entirely around the tapes, asindicated in Fig. 3, so that'the attachment of the signatures tothetapes is at a point behind' the binding edges of the signatures,whereby greater flexibility is imparted to the binding, permitting thebook to be opened to a fiat form without danger of (straining thesewing.

For the tapes 6 I preferably employ a material in the form' of aflattened Ywoven tube, as indicated in Fig. 5,this materialbeing moreiieXible than a strip of single-ply material of equal strength, sincethe glue does not permeate both plies, and consequently does not two-plytape.

ICO

able width also permit of accommodating themselves to strains upon thethreads,so that the sewing is not liable to be broken when the book isopened in a fiat form.

A strip or piece 9 of canvas or other stout material is glued orotherwise secured upon the body of the book outside the tapes 6 at thebinding edges, the width of said strip 01 piece fl being such as topermit the lateral parts 10 thereof to extend at the sides of the bookt-o permit of attachment to the sides 2 2.

In binding the book the reinforces 12 and 13 are first applied to theouter signatures l 4, the iiy-leaves and end sheets being secured by thereinforces 13 to said signatures, after which the several signatures 4and 5 are assembled and sewed to the tapes 6 G and the canvas sheet 9 isglued over the back of the book, as shown in Fig. 3. The boards are thenlaid upon the sides of the book and lightly glued to the extendedlateral portions 10 of the canvas strip 9, after which the coversheet isapplied over the boards and back in a well-known way. The cover havingbeen completed upon the book is then torn away from the lateral portions10 of the canvas strip 9, so that it may be stamped or printed asdesired, after which it is again applied over the book, the portions 10beingsecurely glued down upon the inner faces of the sides 2 and theends 7 of the tapes 6 being also securely glued down on the portions 10,as shown in Fig. 2. The end sheets 17, together with the outer plies 15of the reinforces 13, to which said end sheets are attached, are thensecurely glued or pasted down upon the inner surface of the sides.

My improved binding, as above described, is of an extremely simple andinexpensive nature and is especially well adapted for use, since itimparts to the bound books increased strength and durability, so thatthe sewingis prevented from damage and the covers are prevented frombeing torn away from the books. The improved binding also aords greatflexibility, since itis possible to open the book to a fiat form withoutdanger of damage to or undue strain upon the sewing. The reinforces 1land 13 at the front and back of the book alsogiveincreased strengthandfiexibility, so that the first and last pages, which are commonly easilytorn away from the binding, are securely held in place and a flexibleconnection is produced between the body of the book and the sides 2 2,permitting extreme ilexure of the said sides upon the book withoutdamage to the binding.

It will also be obvious from the above description that the improvedbinding is capable of some modification without material departure fromthe principles and spirit of the invention, and for this reason I do notwish to be understood as limiting myself to the precise form andarrangement of the parts herein set forth.

Having thus described my invention, I claim- 1. In a binding for books,the combination of signatures, a back, sides and reinforces each formedfrom astrip of material folded at its central portion to form two plies,the folded central portion of each reinforce being held between one ofthe outer signatures and the next adjacent inner signature and the twoplies of said reinforce being superimposed and extended aroundthebinding edge of the outer signature and one of said plies being securedupon the adjacent side, substantially as set forth.

2. In a binding for books, the combination of a back, signatures, sidesand reinforces each formed from a strip of material folded at itscentral portion to form two plies, the folded central portion of eachreinforce being held between one of the outersignatures and the nextadjacent inner signature and the two plies of said reinforce beingsuperimposed and extended around the binding edge of the outer signatureand one of said plies being secured upon the adjacent side, and afly-leaf secured upon the other ply of said reinforce, substantially asset forth.

3. In a binding for books, the combination of a back, signatures, sides,reinforces each formed from a strip of material folded at its centralportion to form two plies, the folded central portion of each reinforcebeing held between one of the outer signatures and the next adjacentinner signature and the two plies ofsaid reinforce being superimposedand extended around the binding edge of the outer signature, an endsheet secured upon one ply of each reinforce and a fly-leaf secured uponthe other ply of each reinforce, substantially as set forth.

4. In a binding for books, the combination of a cover, signatures,tapes, each formed of a strip of flattened woven tubing extendedtransversely across the binding edges of the signatures and having itstwo plies movable one on the otherat its central part, said strip beingsecured at its ends tothe cover and stitches passed through thesignatures and engaged with said tapes, substantially as set forth.

Signed at Cincinnati, October, 1901.

RICHARD P. lVINCKLER.

lVitnesses:

JOHN ELIAS JONES, J. D. TnoRNE.

Ohio, this 1st day of IIO

